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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 6656429 | Sterilizer vacuum test pack A test pack for testing the adequacy of air removal in a prevacuum sterilizer. The test pack including a first plurality of planar sheets of substantially porous material disposed to form a stack; a second plurality of planar sheets of substantially porou... | 12/02/2003 |
| 6548248 | DNA sterilization indicator A method of determining the effectiveness of a sterilization cycle in a sterilization chamber by the use of an indicator containing DNA and a dye which can be bound thereto. The indicator containing DNA is placed in the sterilization chamber prior to the ... | 04/15/2003 |
| 6410336 | Method reagent and kit for the detection of fecal occult blood A fecal specimen may be tested for the presence of occult blood by combining the fecal specimen with (a) an oxidizable substrate that produces a colored product in the presence of peroxide and hemoglobin; (b) hydrogen peroxide or a peroxide source; and (c) an ... | 06/25/2002 |
| 5563071 | Method, reagent and kit for the detection of fecal occult blood A fecal specimen may be tested for the presence of occult blood by combining the fecal specimen with (a) an oxidizable substrate that produces a colored product in the presence of peroxide and hemoglobin; (b) hydrogen peroxide or a peroxide source; and (c) an ... | 10/08/1996 |
| 5542905 | Switch mechanism for use in a laryngoscope handle A laryngoscope handle includes a switch assembly for creating an electrical circuit between a lamp and a battery when a laryngoscope blade attached to the handle is moved into a working position. The switch assembly is formed from: (1) a first sleeve in w... | 08/06/1996 |
| 5465124 | Headband with adjustable device for positioning an optical device A positioning device for an optical device is formed of two substantially parallel mounting plates which extend laterally outward from a headband. Each mounting plate has two vertically elongated slots cut in it. The slots closest to the headband (proxima... | 11/07/1995 |
| 5447868 | Method, reagent and kit for the detection of fecal occult blood A fecal specimen may be tested for the presence of occult blood combining the fecal specimen with (a) an oxidizable substrate that produces a colored product in the presence of peroxide and hemoglobin; (b) hydrogen peroxide or a peroxide source; and (c) an enh... | 09/05/1995 |
| 5435971 | Sterilization biological test pack A sterilization biological test pack includes a first plurality of apertured planar sheets of substantially porous paper disposed to form a stack. Each of the sheets defines a generally centrally disposed aperture, the apertures operatively defining toget... | 07/25/1995 |
| 5333018 | Binocular ophthalmoscope A stereoscopic ophthalmoscope for examining an eye including two inner reflection mirrors for guiding light representing the image of the eye toward a pair of external mirrors. Each of the external mirrors serves as an image splitter for dividing the ligh... | 07/26/1994 |
| 5217901 | Sterilization biological test pack A sterilization biological test pack comprises a first plurality of apertured planar sheets of substantially porous paper disposed to form a stack. Each of the sheets defines a generally centrally disposed aperture, the apertures operatively defining toge... | 06/08/1993 |
| 5200147 | Compact prevacuum steam sterilizer test pack A prevacuum steam sterilization test pack, for testing the efficiency of the vacuum system of a steam sterilizer apparatus to create a vacuum, comprises a bundle of layers and a porous overwrap folded about the bundle to maintain the integrity thereof. Th... | 04/06/1993 |
| 5196964 | Magnifier A magnifier for observing a surface includes a housing, a detachable window attachment coupled to a first end of the housing and an eyepiece coupled to a second end of the housing. A light source attachment is coupled to the housing for supplying light to... | 03/23/1993 |
| 5158363 | Steam sterilization indicator A steam sterilization indicator for indicating both exposure to steam and sterilization is provided. The steam sterilization indicator includes a backing member. A tablet formed of a compound having a first melting point and second melting point which is ... | 10/27/1992 |
| 5137211 | Dispensing carton A carton for dispensing articles from the front thereof comprises a top wall, a bottom wall, and a laterally spaced apart pair of sidewalls connecting said top wall and said bottom wall. A shelf is disposed intermediate the top and bottom walls and extend... | 08/11/1992 |
| 5066464 | Prevacuum steam sterilization test pack A Bowie and Dick type prevacuum steam sterilization test pack for insertion into a sterilization chamber for indicating the presence of unacceptable levels of uncondensable gas comprises a housing, a heat sink and an indicator. The housing defines a singl... | 11/19/1991 |
| 4963014 | Ophthalmoscope An opthalmoscope comprises a beam of light projecting along an illumination beam path into the eye of a patient and onto the fundus oculi of the eye, and a condenser system arranged in the illumination beam path. The condenser system includes an element h... | 10/16/1990 |
| 4918003 | Biological test device for steam sterilizers A disposable package is adapted to simulate the steam permeability and other qualities of the linen pack previously used to test the functioning of a steam sterilizer using a biological test device. The biological test device comprises spores on an approp... | 04/17/1990 |
| 4684227 | Binocular indirect ophthalmoscope A binocular indirect ophthalmoscope is disclosed in which the optical observation axes from the examiner's pupils to the patient's pupil and the optical illumination axis from an illumination source to the patient's pupil are varied simultaneously by a si... | 08/04/1987 |
| 4681413 | Headband with optical device adjustably coupled thereto Head-worn apparatus to which an optical device is adjustably coupled is disclosed. The apparatus comprises a headband, a support bow for the optical device rotatably coupled to the headband and a locking mechanism for automatically locking the bow in a vi... | 07/21/1987 |
| 4675919 | Headband with cushion A headband for the mounting of devices carried on the head, in particular medical optical instruments, includes removable cushions which are constructed of an elastic material of stable shape and are located on the headband at regions at which it comes in... | 06/30/1987 |
| 4505274 | Suture clip A one-piece suture clip, for holding the edges of a wound together, is constructed from a continuous metal strip formed into a pair of coacting arms adjacent a central bending region. Each arm includes a sharp projection for grasping the skin adjacent the... | 03/19/1985 |
| 4486387 | Disposable prevacuum steam sterilizer test device A disposable test package for testing the proper functioning of a steam sterilizer is formed with a test sheet adapted to change color in response to the presence of steam under preselected sterilization conditions. The sheet is surrounded by disposable n... | 12/04/1984 |
| 4384583 | Tourniquet A tourniquet constructed from a length of elastic material. The ends of the elastic material are made non-elastic, and complementary coupling components are attached thereto. The elastic material is provided with a thickening for stress absorption and con... | 05/24/1983 |
| 4273112 | Laryngoscope The invention relates to an improved laryngoscope with a mounting for the incandescent lamp which permits its easy removal for replacement purposes. In one embodiment the lamp can be removed upwardly from the handle of the laryngoscope and in other embodi... | 06/16/1981 |
| 4215678 | Endoscope An endoscope includes a light conducting outer tube and a light absorbing inner tube, with the inner tube being located concentric with the outer tube and being spaced a distance radially inwardly from the outer tube so as to maintain total internal refle... | 08/05/1980 |
| 4212390 | Wound clip rack A wound clip rack has a base and a plurality of groups of flexible support fingers projecting upwardly from the base. Each group of flexible support fingers is adapted to support one wound clip. Each group includes at least one and preferably two pairs of... | 07/15/1980 |
| 4196980 | Opthalmoscope examination pattern having light transmissive fixation point The present application discloses an examination pattern for use in conjunction with ophthalmoscopes which provides a light transmissive opening at the pattern center to act as a reference point in the examination of the eye.... | 04/08/1980 |
| 4187799 | Temperature indicator A temperature indicator adapted to be attached to an object to be monitored consists of a housing containing a temperature responsive material and an embedded indicating object. Upon reaching the appropriate temperature, the temperature responsive materia... | 02/12/1980 |
| 4166677 | Illumination system for indirect ophthalmoscope The invention relates to a lighting appliance for generating a light beam for indirect ophthalmoscopy which appliance comprises a housing with a beam outlet aperture through which the beam leaves the housing and first and second means in the housing to re... | 09/04/1979 |
| 4087154 | Glass slides with matted areas A glass slide which has a matted area. This matted area is formed by a ground surface area of the slide, and this matted area as well as the remainder of the slide are perfectly free of any particles of glass. The matted area extends between an end edge o... | 05/02/1978 |
| 4082946 | Apparatus for controlling the illumination of optical examination devices An apparatus for controlling the illumination of optical examination devices adapted to be connected to the distal end of a light conducting cable connected at its near end to a source of light, which apparatus permits control of illumination of the dista... | 04/04/1978 |
| 4060724 | Mounting apparatus for optical examination devices connected to a projector through a light-conducting cable A mounting apparatus is provided for an optical examination device secured to a hand grip at the distal end of a light-conducting cable which is connected at its near end to a projector. The mounting apparatus includes a lower mount for supporting the cab... | 11/29/1977 |
| 4043646 | Filter mechanism with interconnected heat and color filters for optical examination devices A filter mechanism for use with a source of white light permits selective color filtration of the white light, as well as unfiltered light transmission. A color filter support, having a plurality of spaced color filters, mounts the filters for selective m... | 08/23/1977 |
| 4033337 | Self-donned Sphygmomanometer cuff A sphygmomanometer cuff which is adapted to be put on by a patient without assistance. One end of the cuff is formed into a loop by means of elastic bands extending around the loop. When the loop is slipped over a limb, the elastic bands stretch and hold ... | 07/05/1977 |
| 3991881 | Sterile pack A sterile pack blank is provided which comprises an enclosure determined by a substrate of predetermined porosity and a discrete plastic film overlying the porous substrate. The film and porous substrate are adhesively connected by a cohesive or self-seal... | 11/16/1976 |
| 3954099 | Sphygmomanometer A sphygmomanometer in which individual valve mechanisms under control of a series of push buttons are provided to permit release of air from the sphygmomanometer cuff at approximate predetermined rates for proper diagnosis. The valve arrangement includes ... | 05/04/1976 |
| 3948585 | Ophthalmoscope examination pattern having slit and surrounding ring The present application discloses an examination pattern for use in conjunction with ophthalmoscopes which provide a illuminated slit surrounded by an illuminated ring to permit the physician to view the environment of the portion of the retina illuminate... | 04/06/1976 |
| 3936161 | Ophthalmoscope illumination arrangement This application discloses an ophthalmoscope illumination arrangement including a bulb mounted in a special bulb carrier which is adapted to cooperate with the ophthalmoscope chassis so as to automatically position the bulb for best illumination. The bulb... | 02/03/1976 |
| 3934578 | Direct illumination otoscope The present application discloses a small size otoscope (the instrument with which the doctor examines the ear) including a bulb mounted directly in the proximal portion of the speculum body to illuminate the field of view. The bulb includes positive and ... | 01/27/1976 |
